Human clinical isolates in geographically distinct locations. The relative abundance of the clonal complexes detected in Oxfordshire, UK during a one-year study (). Comparison with the clonal complexes detected in three other studies of human Campylobacter infections in NW England, UK () Curaçao, () and New South Wales, Australia ()

Probabilistic assignment of the Campylobacter jejuni allelic profiles isolated from geese (blue), chickens (yellow) and starlings (red), using the software package Structure. Each vertical bar represents an allelic profile and gives the estimated probability that it comes from each of the sources

Comparison of human Campylobacter jejuni isolates with those from poultry, ovine/bovine and environmental sources. The phylogenetic trees were constructed using ClonalFrame software and the ST-based clonal complexes are indicated. The shaded area of the pie charts is proportional to the frequency that each clonal complex occurs in comparison of scaled data sets (n = 765)